Applicable Models

This information is for the following models:

  • NW-WM1A
  • NW-WM1Z

IMPORTANT: This file is only for use with the models identified. Not all models are sold in all countries.

About this download

Benefits and improvements from the latest update

  • Corrects an issue where a time error is displayed while playing some MP3 content
  • Improves the operability when sorting the Bookmark List

Previous Benefits and Improvements

  • The USB-DAC function has been added
  • The Bluetooth Receiver function has been added
  • A Vinyl Processor option has been added to the Sound Quality settings
  • A Digital Peak Meter has been added to the layout options on the Playback screen
  • A function for manually adding cover art images to albums has been added
  • aptX, "aptX HD" Bluetooth codec added
  • APE and MQA music formats added
  • Shuffle and repeat settings made available from the playback screen
  • Auto power off function added to prolong battery life
  • Methods of displaying song information increased
  • Other functions improved
  • Improved the response when the touch panel is pressed or scrolled
  • Addressed issues where the sound was skipping or cutting out under certain conditions
  • Addresses a rare issue where characters may become corrupted when Simplified Chinese or Traditional Chinese contents are displayed
  • Addressed the issue where characters in the WALKMAN display appear corrupted when Thai appears in the song titles, etc
  • Addressed other issues

System Requirements

Operating Systems

The latest version of the firmware update is compatible with most commonly used versions of Mac OS:
IMPORTANT: Not supported by operating systems other than specified below.

  • OS X 10.10-10.11, macOS 10.12-10.13

File Info

File Name

  • Firmware Update version 3.01 for NW-WM1 series (Mac)

File Version

  • Version 3.01

File Size

  • 113 MB (119,469,492 byte)

Release Date

  • 12-13-2018

Before You Start

Check the firmware version

Do I need to download it? This update is not necessary if your Walkman has already been updated to firmware version 3.01 by the automatic firmware update function. If you're not sure, it's easy to check which version of firmware you have:

  1. Press and hold the Power button until the Home menu appears.
  2. Tap the [Options/Settings] icon, in the bottom right corner of the screen.
  3. Select the [Settings] menu.
  4. Scroll until the bottom and choose the [Unit Information] menu.
  5. Confirm the Model number and Firmware version.

Before you upgrade

  • Be sure to connect to the network while updating.
  • After updating, the firmware cannot be reverted to an earlier version.
  • Please transfer all data from the unit to the computer, since data which remains on the unit may be lost when upgrading.
    Note: We cannot guarantee tracks and data will not be damaged or deleted when performing this update.
  • When upgrading, the unit needs to have free space of about 200 MB. Please confirm the amount of free space is sufficient.
  • If there is not enough free space in the built-in flash memory, transfer any unnecessary data back to the computer to increase free space.
  • During the installation of this file, be sure that you are logged in as the Administrator or as a user with Administrative rights.

Download & Install

Step 1: Install the update

  1. Read and agree to the terms and conditions.
  2. Download the file to your computer.
  3. After completion of the download, connect your Walkman to your computer by USB connection.
  4. Quit all software running on your computer.
  5. Double click the saved file and follow the on-screen instructions.
    Note: Please do not disconnect the unit from the computer during the upgrade.
  6. When the message indicating the upgrade is complete is displayed, click on [Finish].

Step 2: Check the update was successful

After the update, please confirm the new version has been installed successfully by following the steps in the [Check the firmware version] section.

If the Firmware version shown is "3.01", the upgrade was successful.